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WO2009097871A1 - Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation - Google Patents

Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation Download PDF

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Publication number
WO2009097871A1
WO2009097871A1 PCT/EP2008/000917 EP2008000917W WO2009097871A1 WO 2009097871 A1 WO2009097871 A1 WO 2009097871A1 EP 2008000917 W EP2008000917 W EP 2008000917W WO 2009097871 A1 WO2009097871 A1 WO 2009097871A1
Authority
WO
WIPO (PCT)
Prior art keywords
modules
base module
communication
expansion modules
telegrams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/000917
Other languages
German (de)
English (en)
Inventor
Stefan Beyer
Matthias Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to CN200880125194.0A priority Critical patent/CN101919210B/zh
Priority to US12/866,050 priority patent/US8578077B2/en
Priority to PCT/EP2008/000917 priority patent/WO2009097871A1/fr
Priority to BRPI0822259A priority patent/BRPI0822259A2/pt
Priority to KR1020107017480A priority patent/KR101257153B1/ko
Priority to EP08707581.8A priority patent/EP2241062B1/fr
Publication of WO2009097871A1 publication Critical patent/WO2009097871A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/4013—Management of data rate on the bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/4026—Bus for use in automation systems

Definitions

  • the invention relates to a communication system for serial data transmission in automation technology according to claim 1 and to a corresponding communication method according to claim 7.
  • Motor branches protect and control the motor independently of the higher-level central control. Even if the PLC fails, or if communication with this PLC is interrupted, the motor remains completely protected and controllable.
  • a basic unit as basic module already implements all the necessary protective and control functions for the operation of the motor feeder. If required, this basic module can be supplemented with expansion modules with additional functions via its system interfaces. For example, the type and number of binary or analog inputs and outputs can be increased step by step. Or an additional current or voltage detection module can be used to monitor performance-related measured variables (eg for energy management), etc. In order for these functions to be used, the expansion modules must communicate with the base module and exchange data continuously.
  • DE 102 24 311 A1 already describes a method for serial communication between a base module and a number of extension modules, which could thus be used in a motor feeder.
  • the object of the invention is therefore a communication system and a communication method for a faster communication between a serial arrangement of basic and
  • Expansion modules in particular of modules for motor branches, provide.
  • the number of expansion modules is subdivided into at least two groups Can be addressed.
  • the base module is cyclically in, referred to as telegrams, first periods of time over the communication Connect only to those expansion modules that have group master assigned status, and the expansion modules that are not group master assigned will pass the communicated data.
  • telegrams first periods of time over the communication Connect only to those expansion modules that have group master assigned status, and the expansion modules that are not group master assigned will pass the communicated data.
  • "global" communication is reduced for the basic module required for the actual do-rough phase time.
  • the group masters can then exchange data with their respective extension modules.
  • the group masters in these periods between the telegrams will ignore the data transmitted by the serially preceding expansion module or base module.
  • only "local" communication occurs and thus local data exchange between a few expansion modules, namely those belonging to the respective local group and their group masters.
  • the base module will additionally send a control signal via the communication connection, which informs the expansion modules whether there are first time segments as telegrams or second time segments between the telegrams.
  • Control signal may be a predetermined cyclically recurring binary signal, in the communication link either on the same line as the data, or via a additional line is sent.
  • control signal from the base module could be timed to dynamically control data exchange at the global and local levels during operation of the motor feeder. This dynamic allocation is a time varying one
  • Group formation within the overall system is possible, so that the data, adapted to the current situation, can be transported even faster to the right places and processed locally in the individual subgroups.
  • FIG 1 shows a known serial system structure
  • FIG 2 schematically shows the principle according to the invention
  • 3 shows a cyclic communication in a known serial data exchange and 4 shows the cyclic communication according to the invention.
  • FIG. 1 a typical system structure of a motor branch, consisting of a base module M and five expansion modules S 1 to S 5, is shown schematically.
  • the basic module M here is the system master, which communicates with the extension modules connected in series.
  • the base module M represents the basic unit of a motor feeder, which contains all the necessary basic functions that protect the motor controlled against overload, ground fault and overheating.
  • the expansion modules S 1 to S 5 are connected to the latter via the serial communication link K via a system interface (not shown in more detail) of the basic unit M.
  • the expansion modules S 1 to S 5, which are shown schematically here, can be additional devices, such as, for example, additional input / output modules, current or voltage monitoring modules or operating or display modules.
  • the system interface of the base module with an input of the first expansion module Sl, whose Output then connected to the input of the next expansion module S2, etc.
  • FIG. 3 shows the associated time profile of the communication between the modules M, as the system master, and the expansion modules S 1 to S 5 functioning as slaves.
  • the master M exchanges data with its slaves cyclically recurring.
  • a control signal LCK is provided as a clock signal which cyclically repeats first time segments, which are designated as telegrams T.
  • data are then sent and received by the base module M via the communication link K in data packets to the individual expansion modules S1 to S5.
  • These data packets can be constructed as described in DE 102 24 311 A1. That is, the modules bidirectionally exchange data in individual data packets TS1 to TS5 of typically 4 bytes.
  • the first byte of a data packet TS1 to TS5 is a so-called module recognition byte
  • the second and third bytes contain the data to be communicated for the addressed module
  • the last byte contains a kind of checksum of the previous three bytes.
  • the series of expansion modules is divided into at least two groups Gl and G2.
  • the first expansion module is assigned a status as a group master S1 'for the two subsequent modules S2 and S3, and thus the first group G1 is formed.
  • the second group G2 is formed by also assigning the status as group master for S5 to the fourth expansion module S4 '.
  • This assignment of individual extensions Modules for the groups and the number of expansion modules per group will essentially depend on how the functions of the individual expansion modules must interact during operation of the motor feeder.
  • the slaves Sl 1 and S 4 'become group masters which ignore their inputs, so that in the time intervals between the telegrams T, only communication within the groups G 1 and G 2 can then occur.
  • the extension modules S2, S3 and S5 switch from the mere pushing through of the data so that they now communicate with the expansion modules S11 'and S4'. Thus, a local communication without influencing the actual global communication can be established.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Programmable Controllers (AREA)
  • Control By Computers (AREA)
  • Information Transfer Systems (AREA)

Abstract

L'invention concerne un système de communication et un procédé de communication pour la transmission de données série dans le domaine de l'automatisation, ledit système de communication comprenant un module de base (M) en tant que maître système, une pluralité de modules d'extension (S1, S2, S3, S4, S5,...) en tant qu'esclaves ainsi qu'une liaison de communication bidirectionnelle (K), reliant le module de base en série aux modules d'extension. Selon l'invention, au moins deux des modules d'extension (S1', S4') se voient attribuer un statut de maître de groupe pour les modules d'extension (S2, S3, S5,...) placés en série à la suite des deux modules, le module de base (M) communiquant avec les modules d'extension (S1', S2, S3, S4', S5,...) en fonction de cette attribution.
PCT/EP2008/000917 2008-02-06 2008-02-06 Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation Ceased WO2009097871A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN200880125194.0A CN101919210B (zh) 2008-02-06 2008-02-06 组主控器通信系统和在自动化技术中进行串行数据传输的通信方法
US12/866,050 US8578077B2 (en) 2008-02-06 2008-02-06 Group master communication system and method for serially transmitting data in automation systems
PCT/EP2008/000917 WO2009097871A1 (fr) 2008-02-06 2008-02-06 Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation
BRPI0822259A BRPI0822259A2 (pt) 2008-02-06 2008-02-06 Sistema de comunicação mestre de grupo e método para transmitir em série dados em tecnologia de automação
KR1020107017480A KR101257153B1 (ko) 2008-02-06 2008-02-06 자동화 기법으로 데이터를 직렬 송신하는 그룹 마스터 통신 시스템 및 방법
EP08707581.8A EP2241062B1 (fr) 2008-02-06 2008-02-06 Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/000917 WO2009097871A1 (fr) 2008-02-06 2008-02-06 Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation

Publications (1)

Publication Number Publication Date
WO2009097871A1 true WO2009097871A1 (fr) 2009-08-13

Family

ID=39942887

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/000917 Ceased WO2009097871A1 (fr) 2008-02-06 2008-02-06 Système de communication et procédé de communication avec maîtres de groupe pour la transmission de données série dans le domaine de l'automatisation

Country Status (6)

Country Link
US (1) US8578077B2 (fr)
EP (1) EP2241062B1 (fr)
KR (1) KR101257153B1 (fr)
CN (1) CN101919210B (fr)
BR (1) BRPI0822259A2 (fr)
WO (1) WO2009097871A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102023534B1 (ko) 2015-04-17 2019-09-23 엘에스산전 주식회사 슬레이브 디바이스 및 이의 제어 방법
EP3185485B1 (fr) * 2015-12-21 2018-10-10 ViewMove Technologies Inc. Système de communication à architecture de bus de train
TWI612788B (zh) * 2015-12-21 2018-01-21 視動自動化科技股份有限公司 具有鏈結匯流排的通訊系統
JP6939665B2 (ja) * 2018-03-15 2021-09-22 オムロン株式会社 ネットワークシステム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014324A1 (fr) 1990-03-16 1991-09-19 Locamation Beheer B.V. Procede et systeme de communication pour l'echange seriel de donnees binaires
DE19514696A1 (de) * 1994-04-18 1995-10-19 Kvaser Consultant Ab Anordnung zur Beseitigung von Störungen bzw. zur Ermöglichung einer Hochgeschwindigkeitsübertragung in einer seriellen Bus-Schaltung sowie mit letzterer verbundene Sende- und Empfangsgeräte
EP1326172A2 (fr) * 2001-12-28 2003-07-09 Texas Instruments Incorporated Méthode et appareil de communication et d'allocation d'identificateur de dispositif
DE10224311A1 (de) 2002-05-31 2004-02-26 Siemens Ag Verfahren und Vorrichtung zur seriellen Datenübertragung
EP1746752A2 (fr) * 2000-10-31 2007-01-24 Yamaha Corporation Dispositif de gestion de communication pour accomplir procédé de synchonisation et procédé correspondant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501984C2 (sv) * 1994-04-18 1995-07-03 Kvaser Consultant Ab Anordning för att eliminera funktionsstörningar och/eller möjliggöra höghastighetsöverföring i seriell bus-förbindelse och till denna anslutna sändar- och mottagarenheter
SE0001491D0 (sv) * 2000-04-25 2000-04-25 Scania Cv Ab Funktionsuppdelad deplexkommunikationsbuss
DE10047923C2 (de) * 2000-09-27 2003-04-10 Siemens Ag Verfahren zur Erzeugung einer Verbindungs-Redundanz für ein serielles Kommunikationssystem mit einer Mastereinheit und einer Mehrzahl von Slaveeinheiten, die untereinander als Aneinanderreihung von Punkt-zu-Punkt-Verbindungen in Linientopologie verbunden sind, sowie korrespondierendes serielles Kommunikationssystem
KR100423998B1 (ko) 2001-07-05 2004-03-22 주식회사 휴로펙 필드 버스 통신 시스템
JP3916953B2 (ja) * 2001-12-28 2007-05-23 日本テキサス・インスツルメンツ株式会社 可変時分割多重伝送システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014324A1 (fr) 1990-03-16 1991-09-19 Locamation Beheer B.V. Procede et systeme de communication pour l'echange seriel de donnees binaires
DE19514696A1 (de) * 1994-04-18 1995-10-19 Kvaser Consultant Ab Anordnung zur Beseitigung von Störungen bzw. zur Ermöglichung einer Hochgeschwindigkeitsübertragung in einer seriellen Bus-Schaltung sowie mit letzterer verbundene Sende- und Empfangsgeräte
EP1746752A2 (fr) * 2000-10-31 2007-01-24 Yamaha Corporation Dispositif de gestion de communication pour accomplir procédé de synchonisation et procédé correspondant
EP1326172A2 (fr) * 2001-12-28 2003-07-09 Texas Instruments Incorporated Méthode et appareil de communication et d'allocation d'identificateur de dispositif
DE10224311A1 (de) 2002-05-31 2004-02-26 Siemens Ag Verfahren und Vorrichtung zur seriellen Datenübertragung

Also Published As

Publication number Publication date
KR20100117598A (ko) 2010-11-03
EP2241062B1 (fr) 2014-12-17
US8578077B2 (en) 2013-11-05
EP2241062A1 (fr) 2010-10-20
CN101919210B (zh) 2013-05-29
KR101257153B1 (ko) 2013-04-22
CN101919210A (zh) 2010-12-15
BRPI0822259A2 (pt) 2023-04-18
US20100332705A1 (en) 2010-12-30

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